What is the Remington 870 DM?
It is interesting that semi-automatic shotguns with detachable box magazines are quite common (Vepr-12, Fostech Origin 12, Saiga-12), even though they are rare options for pump-action shotguns. There are several shotgun models available, such as the Remington 870 DM (USA), Mossberg 590M (USA) and Hatsan Raider (Turkey). Remington even had a pump rifle (Remington 7600), which was designed to accept ordinary AR-15 magazines, before they designed the Remington 870 DM.
The Remington 870 DM, where DM stands for “Detachable Magazines,” is a new version of the good old Remington 870 pump shotgun. Please note that it has a detachable magazine which enables the operator to load their shotgun fast.